Smoke-extracting device for tunnels



1,631,442 P. WAGICH SMOKE EXTRACTING DEVICE FOR TUNNELS June 7 1927.

Filed Dec. 22, 1925 lHvEn TOR Pen-ea WAGlCH TTOR Y Patented June 1927. i

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' Application flied December 22, 1325, Serial No. 77,059, ana in Canada August 2 4, 192 5.

My invention relates to improvements.in smoke extracting devicesitor tunnels the .objects oi? which are to provide means whereby the smoke emitted from a locomo-I' =tiv-e is discharged into a. duct from whence it is withdrawn byjai ysuitable means to prevent the .311 of t'lieitunnel beingv contami'nat'ed thereby. A further object is to provide a closure'tor the duct which is adapted to 'beopened bya passing locomotive so that no communication exists be tween the tunnel and 'theduct except (illi-' ing the passageof the locomotive.

The invention consists essentially of a duct suspended from the root of the tunnel having a longitudinal slot iornially closed by a series of hingin 'ly mounted panels and" a cowl mounted upon the stack of a 'l OCOIUO- tive which is adapted to raise the panels consecutively and conduct the smoke and:

products of combustion into the duct, as will be more fully described in the iollowmg SPGClfiCfitEOH, in which:

Fig. 1 is a "fragmentary. longitudinal View of the invention. a

1 Fig. 2 is a sectional'view.

Fig. 3 is a sectional viewota tunnel witha locomotive passing therethrough.

In the drawings like cha'racters of reterence indicate corresponding parts in each figure.

The

fillets 5 projecting inwardly from the lower extremity of the sidewalls to define an iiitermediate space 6 for the admission of the products ot' combustion, and to provide a pair of ledges or rebates 7 upon which a closure 8 norn'ially rests. The closure 8 com-v prise-5 a plurality oi short panels 8*? each of which is apertured as at 9 and is hing-- ingly' secured to one of the rebates 7 by staples it) or other suitable means.

,While I haveshown'theclosure hinging ly nouiited on one side ot the panels 8*, yet it will be obvious that good results Wlll obtained by mounting it in any manner The'nunieral .11' indicates a locomotive; having a smoke stack 12towhich sfitted a nin'i'ieral 1 indicates generally, atun-f nel having a roof 2 from which 15 supported a duct 3 having side walls at and a pair ot;

cowl generally indicated by" the numeralE13.

The cowl 13 is formed with .a substantially"? horizontal-fheader1d exten'ding'rearwardly of the stack -12and is provided with a horithe duct. Thetop'wall 16 0i the header is ,prefe "ably Senihcircular in cross sectionfai d': is provided with an extension-17 which pro jects forwardly of the stack in a downward 3, so that as the locomotive passes, along the tunnel the closure panels 8 are raised 'in' ,bustion are" delivered. from the cowl within f idil'ecfiml 11 Point 8 which i adapted, to

liein aplane below the bottom otth' succession to the, positions SllOWIilli Figure l by the top wall of the cowl 18 to such an extent as to eiiablethe smoke emitted from the smoke stack to be delivered into the duct and subsequently to permit the panels to. resume their normal lowered-"position.

It will be apparent that the opening formed into the duct by the engagement of the cowl 13 with the closure: panels 8* is sufficient to serve the desired purpose. of

. admitting smoke to the} duct and that after the train has passed a give-iipoint the duct is imniediatelysealed on all sides so that the smoke can be extracted therefrom through a flue such as is indicated by the numeral.

19 by any suitable exhausting means and that the .air of the tunnel: will remainftresh and cleantor the comfort and convenience, a

of the passengers; i y l .VVThat I claim asmy invention is:

1'. In a snioke extracting device for tun? iiels the coiiibination' with a duct having a bottom opening extending longitudinally and a plurality of independently displaceable panels iioriiiallyclosingsaid opening and adapted to be successi'velv displaced to open position, oi locomotive having-the stack thereotequipped with a cowladapte'd to project upwardly through the bot-tomi opening ot-vthe duct and provided at' the front with an inclined plane. forinitiating displacementof the panels to open -po.'sition-.

2. In a smoke extracting device; for tun nels, the combination with a duet'having" a bottom opening extending longitudinally" of the tunnel and plurality of panels eX- tending acrossa'nol normally serving to'close said opening,,with each panel independently pivoted at one edge to one side of the duct and being free of the duct at its opposite edge, of a locomotive having the stack there 5 of equipped With an upwardly and rearwarcllv extending cowl adapted tofprojeot upwardly through -the bottom opening of said duct and provided at the front with an inclined plane adapted to successively engage and lift said panels during passage of. 10 the cowl through the duct. V

Dated at Revelstoke,' British Columbia, Canada, this Mthda of December, 1925. V

V ETER WAGICH. 

